287 lines
10 KiB
JavaScript
287 lines
10 KiB
JavaScript
// ==========================================
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// Spine 4.1 渲染逻辑 (Timeline + DebugDraw)
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// ==========================================
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var canvas, gl, renderer, assetManager, skeleton, animationState;
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var lastTime = Date.now();
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var rendererRequestId = 0;
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function startSpine41(canvasElement, files) {
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if(window.viewerConfig.animRequestId) cancelAnimationFrame(window.viewerConfig.animRequestId);
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canvas = canvasElement;
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// 关键修复：添加 premultipliedAlpha: false，解决半透明黑边问题
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gl = canvas.getContext("webgl", { alpha: true, preserveDrawingBuffer: true, premultipliedAlpha: false });
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if(!gl) return;
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// 确保 WebGL 不自动预乘 (因为 PMA 图片本身已经是预乘过的)
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gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
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renderer = new spine.SceneRenderer(canvas, gl);
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assetManager = new spine.AssetManager(gl);
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renderer.premultipliedAlpha = true;
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addPmaToggle41();
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loadFiles41(files);
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}
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function addPmaToggle41() {
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// 适配新版 UI：直接复用 index.html 的 chk-pma，不再重复创建
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const chk = document.getElementById('chk-pma');
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if (chk) {
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// 绑定事件
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chk.onchange = (e) => {
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window.viewerConfig.pmaEnabled = e.target.checked;
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if(renderer) {
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renderer.premultipliedAlpha = e.target.checked;
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}
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};
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// 初始化
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window.viewerConfig.pmaEnabled = chk.checked;
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if(renderer) renderer.premultipliedAlpha = chk.checked;
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}
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}
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async function loadFiles41(files) {
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let map = { atlas: null, png: null, main: null, type: null };
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for(let f of files) {
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let name = f.name.toLowerCase();
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if(name.endsWith('.atlas') || name.endsWith('.atlas.txt')) map.atlas = f;
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else if(name.endsWith('.png') || name.endsWith('.jpg')) map.png = f;
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else if(name.endsWith('.skel') || name.endsWith('.skel.bytes')) { map.main = f; map.type = 'binary'; }
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else if(name.endsWith('.json') || name.endsWith('.json.txt')) { map.main = f; map.type = 'json'; }
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}
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try {
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const atlasText = await readFileAsText(map.atlas);
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const imgUrl = await readFileAsDataURL(map.png);
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const img = new Image();
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img.onload = async () => {
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const texture = new spine.GLTexture(gl, img);
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const spineAtlas = new spine.TextureAtlas(atlasText, (path) => texture);
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for (let i = 0; i < spineAtlas.pages.length; i++) {
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spineAtlas.pages[i].texture = texture;
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spineAtlas.pages[i].width = img.width;
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spineAtlas.pages[i].height = img.height;
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}
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const atlasLoader = new spine.AtlasAttachmentLoader(spineAtlas);
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let skeletonData;
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if(map.type === 'binary') {
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const buffer = await readFileAsArrayBuffer(map.main);
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const skeletonBinary = new spine.SkeletonBinary(atlasLoader);
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skeletonBinary.scale = 1.0;
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skeletonData = skeletonBinary.readSkeletonData(new Uint8Array(buffer));
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} else {
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const text = await readFileAsText(map.main);
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const skeletonJson = new spine.SkeletonJson(atlasLoader);
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skeletonJson.scale = 1.0;
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const jsonObj = JSON.parse(text);
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if(jsonObj.skeleton) jsonObj.skeleton.images = "";
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skeletonData = skeletonJson.readSkeletonData(jsonObj);
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}
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setupSkeleton41(skeletonData);
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document.getElementById('ui').style.display = 'block';
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document.getElementById('controls').style.display = 'flex';
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document.getElementById('version-label').innerText = "Spine 4.1 (Binary/JSON)";
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document.getElementById('version-label').style.color = "#00e5ff";
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if(rendererRequestId) cancelAnimationFrame(rendererRequestId);
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requestAnimationFrame(render41);
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};
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img.src = imgUrl;
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} catch(e) {
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alert("4.1 加载错误: " + e);
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console.error(e);
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}
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}
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function setupSkeleton41(skeletonData) {
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skeleton = new spine.Skeleton(skeletonData);
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skeleton.setToSetupPose();
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skeleton.updateWorldTransform();
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skeleton.x = 0; skeleton.y = -500;
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// 暴露实例供导出使用
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window.spineInstance = { skeleton: skeleton, state: animationState, gl: gl, renderer: renderer };
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renderer.camera.position.x = 0;
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renderer.camera.position.y = 0;
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renderer.camera.zoom = 1.0;
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var stateData = new spine.AnimationStateData(skeleton.data);
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animationState = new spine.AnimationState(stateData);
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const animSelect = document.getElementById('anim-select');
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animSelect.innerHTML = "";
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skeleton.data.animations.forEach(a => {
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const opt = document.createElement('option');
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opt.value = a.name; opt.text = a.name; animSelect.appendChild(opt);
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});
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if(skeleton.data.animations.length > 0) animationState.setAnimation(0, skeleton.data.animations[0].name, true);
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const skinSelect = document.getElementById('skin-select');
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skinSelect.innerHTML = "";
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skeleton.data.skins.forEach(s => {
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const opt = document.createElement('option');
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opt.value = s.name; opt.text = s.name; skinSelect.appendChild(opt);
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});
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if(skeleton.data.defaultSkin) skinSelect.value = skeleton.data.defaultSkin.name;
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animSelect.onchange = () => animationState.setAnimation(0, animSelect.value, true);
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skinSelect.onchange = () => { skeleton.setSkinByName(skinSelect.value); skeleton.setSlotsToSetupPose(); };
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bindControls41();
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updateControls41();
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}
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function render41() {
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// 将 requestId 存储到全局配置中
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window.viewerConfig.animRequestId = requestAnimationFrame(render41);
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// 检查 canvas 是否还存在于 DOM 中
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if(!canvas.parentElement) {
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cancelAnimationFrame(window.viewerConfig.animRequestId);
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return;
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}
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let now = Date.now();
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const targetFps = window.viewerConfig.targetFps || 30;
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const interval = 1000 / targetFps;
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const elapsed = now - lastTime;
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if (elapsed < interval) return;
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lastTime = now - (elapsed % interval);
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let delta = elapsed / 1000;
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// 应用倍速
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delta *= (window.viewerConfig.speed || 1.0);
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// === 导出模式判断 ===
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const isExporting = window.viewerConfig.isExporting;
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if (!isExporting) {
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let w = window.innerWidth;
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let h = window.innerHeight;
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if(canvas.width !== w || canvas.height !== h) {
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canvas.width = w;
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canvas.height = h;
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}
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}
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let w = canvas.width;
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let h = canvas.height;
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gl.viewport(0, 0, w, h);
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if(renderer.camera.viewportWidth !== w || renderer.camera.viewportHeight !== h) {
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renderer.camera.viewportWidth = w;
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renderer.camera.viewportHeight = h;
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renderer.camera.update();
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}
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if (isExporting) {
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gl.clearColor(0, 0, 0, 0); // 强制全透明
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} else {
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const bg = window.viewerConfig ? window.viewerConfig.bgColor : [0.2, 0.2, 0.2, 1];
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gl.clearColor(bg[0], bg[1], bg[2], bg[3]);
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}
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gl.clear(gl.COLOR_BUFFER_BIT);
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// === 关键修复：同步 PMA 设置 ===
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// 确保每一帧都从全局配置读取 PMA 状态，并应用到 renderer
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if (renderer && window.viewerConfig) {
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renderer.premultipliedAlpha = window.viewerConfig.pmaEnabled;
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}
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if (skeleton && animationState) {
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const ctrl = window.animControl;
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let track = animationState.getCurrent(0);
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if (track) {
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if (ctrl) ctrl.updateUI(track.trackTime, track.animation.duration);
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if (ctrl && ctrl.isScrubbing && ctrl.targetTime >= 0) {
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track.trackTime = ctrl.targetTime;
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}
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else if (ctrl && !ctrl.isPlaying) {
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animationState.update(0);
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}
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else {
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animationState.update(delta);
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}
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} else {
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animationState.update(delta);
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}
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animationState.apply(skeleton);
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skeleton.updateWorldTransform();
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renderer.begin();
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renderer.drawSkeleton(skeleton, true);
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renderer.end();
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// === 绘制骨骼调试线 (导出时不绘制) ===
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if(!isExporting) {
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if(window.debugRenderer && window.viewerConfig.showBones) {
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window.debugRenderer.drawBones(
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skeleton,
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renderer.camera.position.x,
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renderer.camera.position.y,
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renderer.camera.zoom,
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h
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);
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} else if(window.debugRenderer) {
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window.debugRenderer.drawBones(null, 0,0,1,0);
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}
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}
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}
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}
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function updateControls41() {
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document.getElementById('posX').value = skeleton.x;
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document.getElementById('posY').value = skeleton.y;
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}
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function bindControls41() {
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const inputX = document.getElementById('posX');
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const inputY = document.getElementById('posY');
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inputX.oninput = () => { if(skeleton) skeleton.x = parseFloat(inputX.value); };
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inputY.oninput = () => { if(skeleton) skeleton.y = parseFloat(inputY.value); };
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window.resetView = function() {
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skeleton.x = 0; skeleton.y = -500;
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renderer.camera.position.x = 0; renderer.camera.position.y = 0; renderer.camera.zoom = 1.0;
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updateControls41();
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};
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let isDragging=false, startX, startY, isRightDrag=false;
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canvas.oncontextmenu = e => e.preventDefault();
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canvas.onmousedown = e => {
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if(e.button === 2) isRightDrag = true; else isDragging = true;
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startX = e.clientX; startY = e.clientY;
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};
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window.onmouseup = () => { isDragging=false; isRightDrag=false; };
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window.onmousemove = e => {
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if(isDragging) {
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renderer.camera.position.x -= (e.clientX - startX) * renderer.camera.zoom;
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renderer.camera.position.y += (e.clientY - startY) * renderer.camera.zoom;
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startX = e.clientX; startY = e.clientY;
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} else if(isRightDrag) {
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let dy = e.clientY - startY;
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let newZoom = renderer.camera.zoom * (1 + dy * 0.01);
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if(newZoom > 0.1 && newZoom < 10) renderer.camera.zoom = newZoom;
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startY = e.clientY;
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}
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};
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canvas.onwheel = e => {
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let newZoom = renderer.camera.zoom * (e.deltaY > 0 ? 1.1 : 0.9);
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if(newZoom > 0.1 && newZoom < 10) renderer.camera.zoom = newZoom;
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};
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}
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